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Quantitative measurement of the mechanical properties of human antibodies with sub-10-nm resolution in a liquid environment

Voss, Agnieszka and Dietz, Christian and Stocker, Annika and Stark, Robert W. (2015):
Quantitative measurement of the mechanical properties of human antibodies with sub-10-nm resolution in a liquid environment.
In: Nano Research, TSINGHUA UNIV PRESS, TSINGHUA UNIV, BEIJING, PEOPLES R CHINA, pp. 1987-1996, 8, (6), ISSN 1998-0124,
[Online-Edition: http://dx.doi.org/10.1007/s12274-015-0710-5],
[Article]

Abstract

The nanomechanical properties of single human immunoglobulin G and M antibodies were measured in a liquid environment using a fast force-volume technique with sub-10-nm spatial resolution. The ultrastructural details of these molecules were resolved in the images. Simultaneously, important physical properties, including elasticity, adhesion, and deformation were measured. The dimensions and adsorption of the immunoglobulin M antibodies onto the substrate indicated that they are highly flexible. The antibodies were characterized by a low elastic stiffness (34 +/- 10 MPa) and high deformability (1.5 +/- 0.5 nm).

Item Type: Article
Erschienen: 2015
Creators: Voss, Agnieszka and Dietz, Christian and Stocker, Annika and Stark, Robert W.
Title: Quantitative measurement of the mechanical properties of human antibodies with sub-10-nm resolution in a liquid environment
Language: English
Abstract:

The nanomechanical properties of single human immunoglobulin G and M antibodies were measured in a liquid environment using a fast force-volume technique with sub-10-nm spatial resolution. The ultrastructural details of these molecules were resolved in the images. Simultaneously, important physical properties, including elasticity, adhesion, and deformation were measured. The dimensions and adsorption of the immunoglobulin M antibodies onto the substrate indicated that they are highly flexible. The antibodies were characterized by a low elastic stiffness (34 +/- 10 MPa) and high deformability (1.5 +/- 0.5 nm).

Journal or Publication Title: Nano Research
Volume: 8
Number: 6
Publisher: TSINGHUA UNIV PRESS, TSINGHUA UNIV, BEIJING, PEOPLES R CHINA
Uncontrolled Keywords: atomic force microscopy, structure and physical properties, piconewton forces, flexibility, antibodies, immunoglobulin
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Physics of Surfaces
Zentrale Einrichtungen
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Exzellenzinitiative
Exzellenzinitiative > Clusters of Excellence
Profile Areas > Thermo-Fluids & Interfaces
Profile Areas
Date Deposited: 31 Aug 2015 14:22
Official URL: http://dx.doi.org/10.1007/s12274-015-0710-5
Funders: The authors thank the Center of Smart Interface for financial support.
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